Much like the Fast3D series microcode, the audio microcode also accepts commands in order to perform tasks on the RSP (Reality Signal Processor). As with Fast3D, each audio command is 64 bits (8 bytes) in size. There are 16 different audio commands.

``00 00 00 00 00 00 00 00``

Stalls the RSP. This command does nothing otherwise and should only be used for debugging.